Desk



FIG. 1 is a perspective view of a desk showing my new design;

FIG. 2 is a plan view thereof;

FIG. 3 is a side elevational view, the opposite side being a mirror image thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a top view thereof.

The views of the desk not shown form no part of the claimed design. The broken lines depicting hardware, feet, spreader bar and ornamentation on top represent environmental elements only and form no part of the claimed design. 

The ornamental design for a desk, as shown and described. 